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Finding the Third Proportional to 20,776 and 32,224

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Solution

The third proportional to 20,776 and 32,224 is: 49,980.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,776 : 32,224 = 32,224 : x
  2. Step 2: Convert to fraction form
    20,776/32,224 = 32,224/x
  3. Step 3: Cross multiply
    20,776x = 32,224 × 32,224
  4. Step 4: Simplify right side
    20,776x = 1,038,386,176
  5. Step 5: Solve for x
    x = 1,038,386,176/20,776
  6. Step 6: Final answer
    x = 49,980.08

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.